Saw-swage.



PATENTED JUNE 25, 1907.

' J. HANGHETT.

SAW SWAGE.

' APPLIUATION FILED MAR, '14; 1906.

NI/ENTOH I Jaimiiiznclzel By M WITNESSES:

A TTOHNE )"S 7n: NORRIS PETERS co., WASHINGTON, o c.

JOHN HANCHETT, OF SHERIDAN, MICHIGAN.

SAW-SWAGE.

Specification of Letters Patent.

Patented June 25, 1907.

Application filed March 14,1906. Serial No. 305,984.

To all whom, it may concern:

Be it known that 1, JOHN HANCI-IETT, a citizen of the United States, anda resident of Sheridan, in the county of Montcalm and State of Michigan,have invented a new and Improved Saw-Swage, of which the following is afull, clear, and exact description.

This invention relates to saw swages. It is useful for swaging the teethof large and small saws.

The object of the invention is to produce a device of this class whichis sim 1e in construction and which may be readi y attached to the sawblade and as readily manipulated.

The invention consists in the construction and combination of parts, tobe more fully described hereinafter and particularly set forth in theclaims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation showing a por tion of a saw blade 'with theswage operating thereupon; a portion of the swage being broken away andshown in section; and Fig. 2 is substantially a front elevation of theswage, showing a portion thereof and a portion of the saw blade in crosssection.

Referring more particularly to the parts, 1 represents the body of theswage, which consists of a block, preferably of forged steel or similarmaterial, and this block is preferably formed with its vertical axisinclined as shown. Its lower face is provided with a central channel orgroove 2, adapted to receive the toothed edge of the saw blade 3, asindicated in Fig. 1. The forward face 4 of the block 1 is cut away so asto form a recess 5, the bottom face 6 of which extends downwardlysubstantially parallel with the forward face 4 of the block, and whereit meets the bottom of the channel 2, a concave face 7 is formed toreceive an anvil 8. This anvil 8 consists of a round bolt or stud,formed on one side with a flat face 9, adapted to come against the sidesof the teeth respectively, as indicated in Fig. 1.

In the lower portion of the block a clamping screw 11 is mounted, theinner extremity whereof is adapted to be forced against the saw blade 3,as shown in Fig. 2, so as to clamp the same against a removable stud 12,mounted in a socket 13 formed in the side face of the channel 2. For thepurpose of screw 11 is preferably formed with an angu lar head 15 towhich a lever 16 may be applied, said lever having a wrench socket 17adapted to engage the head 15. In the upper portion of the block 1, abrace 18 is at tached, the same consisting of an arm 19, adapted toengage the notches between the teeth of the saw 3, as indicatedin Fig.1, the said arm being formed integrally with a shank 20, which passeslongitudinally through the block as shown. The opposite extremity ofthis shank is turned up to form an arm 21, terminating in a laterallydisposed finger 22. The brace 18 is held in position in the block bymeans of set screws 23, the inner extremities whereof are receivedingrooves 24 formed in the shank 20, as indicated most clearly in Fig. 2.

In the recess 5 is mounted a die holder 25, having substantially theform shown in Fig. 1. This die holder is pivotally mounted on aneccentric bolt 26, and is formed with a nose 27 carrying a removable die28. Its upper extremity is formed with'a tail 29 which lies against theface of the eccentric swaging bolt 30, which passes transversely throughthe block 1 as shown. This bolt 30 is formed at its outer extremity withan angular head 31 to which a removable lever 32 may be applied, saidlever having a wrench socket 33 similar to the wrench socket 17 referredto above. On the face 4 of the block, a leaf spring 34 is attached,which presses against the outer face of the tail 29 of the die holder25, and holds the same against the swaging bolt.

To the upper face of the block 1 is attached a bracket plate 35, whichextends forwardly as shown and supports a bolt 36, which has a threadedconnection therewith, as indicated. The bolt 36 receives a check nut 37,which screws against the face of the bracket plate 35 so as to securelylock the bolt 36 in any adjusted position desired. To the lowerextremity of the bolt 36 a rider or saddle 38 is attached, the samecomprising a horizontal body 39 which receives a face strip 40 whichrests against the teeth of the saw 3 as shown. At its middle point thebody 39 is provided with fingers 41 which project down on each side ofthe saw so as to maintain the rider in position, as will be readilyunderstood. W The swage will be applied to the saw blade as indicatedmost clearly in Fig. 1, the brace 18 affording means for supporting therear portion of the block. For this purpose, the arm 19 of the brace isprovided with a laterally disposed finger 42 at its lower extremity,which rests in the notch between the teeth of the saw, as shown. Theswage will be brought into position so that the flat face 9 of the anvillies against the more inclined face of the tooth, whereupon the swaginglever 32 is rotated in the direction of the brace 18, so that theeccentric bolt will operate the die holder. In this way the die 28 whichlies opposite the anvil, is pressed with great force against the pointof the tooth which is being swaged. As indicated in Fig. 2, the finger22 of the arm 21 projects into the path of the lever 32, and is intendedto operate as a stop to limit the movement of this lever.

In order to enable the angular position of the flat face 9 of the anvilto be adjusted, the extremity of the anvil which projects at the left ofthe block, as indicated in Fig. 2, has rigidly attached thereto asegment 43, having a curved slot 44 through which a clamping bolt 45passes. Evidently, by rotating, this segment and clamping the same indifferent positions, the anvil may be adjusted as desired. Thisadjustment is necessary so as to The eccentric on the bolt 26 is for thepurpose of adjusting the opening between the anvil 8 and the die 28, andfor regulating the amount of swaging to be done on the saw teeth, andsaid bolt is adjusted by a segment shown in dotted lines in Fig. 1, andsimilar to the segment 43 which adjusts the anvil 8.

The arm 21 of the brace 20 acts as ahandle to be seized in moving theswage to the next tooth. While it enables the swage-block to be liftedor slid along it also enables the arm 19 to be controlled. In this waythe practical efliciency of the machine is much in creased.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 2- In a saw swage, in combination, a block having achannel in the under face thereof adapted to receive the edge of the sawblade, an anvil mounted in said block, a swaging device attached to saidblock and cooperating with said anvil, a lever actuating said swagingdevice, a brace rotatably mounted in said block having an arm engagingbetween the saw teeth of said blade, and having a second arm projectinginto the path of said lever and constituting a stop therefor.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN HANOHETT. Witnesses A. N. RUssELL, F. B. THAYER.

